{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MGN60540","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"MGN60540","canonicalUrl":"https://aoctrl.com/schneider/MGN60540","factsUrl":"https://aoctrl.com/api/mcp/products/MGN60540","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Multi9 C60N series, MGN60540 miniature circuit breaker, 3P, D curve, 40 A rated current, 20 kA Icu at 240 V AC, EN/IEC 60947-2.","salesMarkdown":"The MGN60540 is a C60N miniature circuit breaker from the Multi9 range, 3-pole, D curve, rated 40 A at 50 °C per EN/IEC 60947-2. Breaking capacity is 20 kA Icu at 240 V AC phase-to-phase, 10 kA at 415 V AC, and 6 kA at 440 V AC — all per EN/IEC 60947-2. The service breaking capacity (Ics) is 75 % of those figures: 15 kA at 240 V, 7.5 kA at 415 V, 4.5 kA at 440 V. That means after clearing a fault at Ics level the breaker remains functional, not just safe. For a 240 V panel with high available fault current, this holds. The tunnel terminals accept 1.5 to 35 mm² rigid or flexible wire; torque to 3.5 N·m on the power circuit. IP20 finger-safe front, pollution degree 3 rated — standard for distribution boards in industrial enclosures. ## D curve selection logic The D curve trips magnetically at 12 x In (±20 %). For a 40 A circuit feeding a motor starter, this avoids nuisance tripping from starting current. ## Integration into a distribution board The 54 mm width (6 modules) means it occupies six 9 mm positions; plan your busbar and gland plate fill accordingly. Toggle handle with ON/OFF indication and a contact position indicator for visual isolation confirmation.","metaTitle":"MGN60540 C60N MCB, D Curve 40A 3P 20kA, Multi9","metaDescription":"MGN60540 C60N miniature circuit breaker, 40A D curve, 3-pole, 20kA Icu at 240V AC. EN/IEC 60947-2. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"73 mm","Range":"Multi9","Width":"54 mm","Height":"81 mm","Standards":"EN/IEC 60947-2","Curve code":"D","9 Mm Pitches":"6","Control type":"Toggle","Network type":"AC","Product name":"C60","Mounting mode":"Fixed","lifecycle_stage":"current","Local signalling":"ON/OFF indication","Mounting support":"35 mm symmetrical DIN rail","Pollution degree":"3 conforming to EN/IEC 60947-2","Range of product":"C60","Breaking capacity":"20 kA Icu at 240 V AC 50/60 Hz phase to phase conforming to EN/IEC 60947-2 10 kA Icu at 415 V AC 50/60 Hz phase to phase conforming to EN/IEC 60947-2 6 kA Icu at 440 V AC 50/60 Hz phase to phase conforming to EN/IEC 60947-2","Device short name":"C60N","Network frequency":"50/60 Hz","Poles description":"3P","Tightening torque":"Power circuit: 3.5 N.m","Device application":"Distribution","[In] rated current":"40 A at 50 °C conforming to EN/IEC 60947-2","Trip unit technology":"Thermal-magnetic","Utilisation category":"Category A conforming to EN/IEC 60947-2","Electrical durability":"10000 cycles conforming to EN/IEC 60947-2","Mechanical durability":"20000 cycles","Wire stripping length":"Power circuit: 14 mm","Connections - terminals":"Tunnel type terminals1.5...35 mm² flexible without cable end Tunnel type terminals1.5...35 mm² flexible with cable end Tunnel type terminals1.5...35 mm² rigid","IP degree of protection":"IP20 conforming to EN/IEC 60947-2","Magnetic tripping limit":"12 x In +/- 20 %","Earth-leakage protection":"Separate block","Number of protected poles":"3","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes conforming to EN/IEC 60947-2","Contact position indicator":"Yes","[Ue] rated operational voltage":"440 V AC 50/60 Hz 240 V AC 50/60 Hz phase to phase","Ambient air temperature for storage":"-40...80 °C","Ambient air temperature for operation":"-30...70 °C","[Ics] rated service breaking capacity":"15 kA 75 % conforming to EN/IEC 60947-2 - 240 V AC 50/60 Hz 7.5 kA 75 % conforming to EN/IEC 60947-2 - 415 V AC 50/60 Hz 4.5 kA 75 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz","Comb busbar and distribution block compatibility":"Top or bottom: YES"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1f8692eb96cdb92f5ae92e764f7c3c07.pdf","sourceUrl":"https://www.se.com/vn/en/product/MGN60540/c60-circuit-breaker-c60n-3p-40a-d-curve/","alternativesUrl":"https://aoctrl.com/api/mcp/products/MGN60540/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/MGN60540","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/MGN60540 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}